ABB AO845A Analog Output Module



ABB AO845A Analog Output Module

Product overview

AO845A is an analog output module suitable for System 800xA systems, supporting single redundancy or redundant applications, equipped with 8 unipolar analog output channels. The module has a periodic self diagnostic function, which can monitor various fault states such as external channel errors, internal channel errors, and module errors, ensuring operational reliability.

Core functions and features

Output capability: 8 channels of 4-20 mA, meeting the analog signal output requirements of industrial sites.

Redundancy support: can be used in redundant application scenarios to enhance system stability.

Isolation protection: 8 channels are isolated from ground as a group, and the analog output has short-circuit protection function (for ZP or+24 V).

Communication function: Supports HART pass through communication, facilitating device status monitoring and parameter configuration.

Self diagnosis: Periodically self diagnose and promptly report various faults, including external channel errors (such as low supply voltage, open circuit, etc.), internal channel errors (such as abnormal output circuit), and module errors (such as output transistor faults, short circuits, checksum errors, etc.).

Specification parameters

Basic parameter model: AO845A; Product Code: 3BSE045584R1; Type: Analog output; Signal specification: 4.20 mA; Number of channels: 8; Does it support HART: Yes; Does it support SOE: No; Redundancy: Support; High integrity: No; Intrinsic safety: No; Mechanical specification: S800

Performance parameter resolution: 12 bits; Isolation method: Group level and grounding isolation; Over/under range: ± 15%; Maximum output load: 750 Ω; Maximum error: 0.1%; Temperature drift: maximum 50 ppm/° C; rise time: 23 ms when output filter is disabled, maximum 4 mA/12.5 ms when enabled; Input filter (0-90% rise time): 23 ms (0-90%), maximum 4 mA/12.5 ms; Update cycle: 10 ms; Current limit: Short circuit protection current limiting output; Maximum on-site cable length: 600 meters (656 yards)

Electrical parameters: Rated insulation voltage: 50 V; Dielectric test voltage: 500 V AC; Power consumption: typical 3.5 W;+5 V Modulus current consumption: maximum 125 mA;+24 V external current consumption: 218 mA

Diagnosis and indication front-end LED: F (fault), R (operation), W (warning) O（SP）； Monitoring status indication: module error, module warning, channel error

Environment and Certification CE Mark: Yes; Electrical safety: compliant with IEC 61131-2, UL 61010-1, UL 61010-2-201; Dangerous Place Certification: C1 Div2 cULus, C1 Zone2 cULus, ATEX Zone 2; Classification society certification: BV, DNV-GL, LR; Protection level: IP20 (according to IEC 60529); Corrosive environment grade: ISA-S71.04 G3; Working climate conditions: 0 to+55 ° C (storage -40 to+70 ° C), relative humidity 5-95%, no condensation (compliant with IEC/EN 61131-2); Pollution level: Level 2 (according to IEC 60664-1); Mechanical working conditions: comply with IEC/EN 61131-2; EMC: Complies with EN 61000-6-4 and EN 61000-6-2; Overvoltage category: compliant with IEC/EN 60664-1 and EN 50178; Equipment category: Class I (according to IEC 61140, grounding protection); Maximum ambient temperature: 55 ° C (131 ° F), 40 ° C (104 ° F) for compact MTU vertical installation; Compliant with RoHS (Directive 2011/65/EU) and WEEE (Directive 2012/19/EU)

Compatible with MTU: TU810, TU812, TU814, TU830, TU833, TU842, TU843, TU852; Key control code: DB

Size and weight width: 45 mm (1.77 inches); Depth: 102 mm (4.01 inches), including connector 111 mm (4.37 inches); Height: 119 mm (4.7 inches); Weight: 0.21 kg (0.46 pounds)

Related products

Including TU810V1, TU812V1, TU814V1, TU830V1, TU833, TU842, TU843, TU852, etc.

Key advantages

High reliability: Equipped with comprehensive self diagnostic functions and short-circuit protection, it can promptly detect and report faults, ensuring stable system operation.

Flexible compatibility: Can be used in conjunction with multiple MTUs, suitable for single redundant or redundant application scenarios, and adaptable to different system architecture requirements.

Convenient communication: Supports HART protocol, facilitating remote monitoring and configuration, and improving system management efficiency.

Strong environmental adaptability: capable of working in a wide range of temperature, humidity, and corrosive environments, compliant with multiple international standards and certifications, suitable for complex industrial environments.